When Beth Feeback bought two large paintings at $9.99 each from a Goodwill store in North Carolina, the artist intended to paint over them. It’s a good thing she didn’t.

One of the paintings turned out to be the work “Vertical Diamond” by notable 20th century artist Ilya Bolotowsky, and Sotheby’s, the world-famous auction house, has valued it at between $15,000 and $20,000.

Petitions asking the actor to visit Aurora were posted on Change.org following Friday’s shooting. Over the weekend, Bale released a statement regarding the massacre, saying “Words cannot express the horror that I feel. I cannot begin to truly understand the pain and grief of the victims and their loved ones, but my heart goes out to them.”